Re: Having trouple sharing files on my network.
You've got File and Print sharing enabled on all the PCs? Are they all under the same Workgroup name? (Right click on My Computer and go into Properties. Then select Computer Name tab to see what workgroup you are in).
If your wiring is connected properly as you say, try disabling your firewalls so the PC can accept transmission coming from it. If you have firewalls on your PC, you need to configure it so it so it will accept the IP address of the other PCs. Otherwise, it will block those computers out of the network and you won't see them on your computer. Do you have security setup on the router? Depending on what kind of filters you have, you need to add those accordingly to the router so it can allow them onto the network.
*Fact: Microsoft Window's Blue Screen of Death vs Computerforums.org's White Screen of Death. Which is worse?